On 17.08.2023 22:42, Kees Cook wrote: > Prepare for the coming implementation by GCC and Clang of the __counted_by > attribute. Flexible array members annotated with __counted_by can have > their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS > (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family > functions). > > As found with Coccinelle[1], add __counted_by for struct icc_onecell_data. > Additionally, since the element count member must be set before accessing > the annotated flexible array member, move its initialization earlier. > > [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci > > Cc: Andy Gross <agross@xxxxxxxxxx> > Cc: Bjorn Andersson <andersson@xxxxxxxxxx> > Cc: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> > Cc: Georgi Djakov <djakov@xxxxxxxxxx> > Cc: linux-arm-msm@xxxxxxxxxxxxxxx > Cc: linux-pm@xxxxxxxxxxxxxxx > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> > --- Very nice, thanks Acked-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> Konrad
